1,011 entry under adjective topic. ×

16
changeless(severe, firm, harsh, solid)
16
persistent(strong, tough, flat, firm)
16
unalterable(strong, hard, secure, severe)
15
secure(strong, hard, sound, tough)
14
lasting(strong, tough, firm, stable)
14
resolved(verb, set, strong, flat)
14
traditional(state, quality, firm, common)
14
unvarying(dull, clear, firm, solid)
13
decided(verb, set, firm, solid)
13
regular(firm, solid, exact, proper)
13
solid(set, strong, hard, sound)
12
eternal(wild, original, persistent, basic)
12
motionless(calm, quiet, strong, secure)
12
predetermined(set, usual, careful, thoughtful)
12
sedentary
12
sure(clear, strong, flat, firm)
12
tight(adverb, close, strong, hard)
12
unmoving(move, calm, strong, secure)
11
arranged(verb, set, certain, ready)
11
everlasting(stable, persistent, constant, continuous)
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APASmart Define. (2016). fixed thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fixed/thesaurus/synonyms
ChicagoSmart Define. 2016. "fixed thesaurus" https://smartdefine.org/fixed/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fixed thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fixed/thesaurus/synonyms>.
MLASmart Define. "fixed thesaurus" 16 March 2016. Web. 22 September 2026. <https://smartdefine.org/fixed/thesaurus/synonyms>